The BC548 from Lision Technology is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Collector Base Voltage 30 V, Collector Emitter Breakdown Voltage 30 V, Collector Emitter Voltage 30 V, Continuous Collector Current 100 mA. Tags: Through Hole, NPN Transistor. More details for BC548 can be seen below.